1 dnl aclocal.m4 generated automatically by aclocal 1.4
3 dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
8 dnl This program is distributed in the hope that it will be useful,
9 dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
10 dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
11 dnl PARTICULAR PURPOSE.
14 dnl Initialize configure bits.
17 AC_DEFUN(GLIBCPP_CONFIGURE, [
18 dnl Default to --enable-multilib
19 AC_ARG_ENABLE(multilib,
20 [ --enable-multilib build hella library versions (default)],
21 [case "${enableval}" in
24 *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
25 esac], [multilib=yes])dnl
27 # When building with srcdir == objdir, links to the source files will
28 # be created in directories within the target_subdir. We have to
29 # adjust toplevel_srcdir accordingly, so that configure finds
30 # install-sh and other auxiliary files that live in the top-level
32 if test "${srcdir}" = "."; then
33 if test -z "${with_target_subdir}"; then
36 if test "${with_target_subdir}" != "."; then
37 toprel="${with_multisrctop}../.."
39 toprel="${with_multisrctop}.."
45 AC_CONFIG_AUX_DIR(${srcdir}/$toprel)
46 toplevel_srcdir=\${top_srcdir}/$toprel
47 AC_SUBST(toplevel_srcdir)
49 # Export build and source directories.
50 # These need to be absolute paths, yet at the same time need to
51 # canonicalize only relative paths, because then amd will not unmount
52 # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
53 glibcpp_builddir=`pwd`
55 [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
56 *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
58 AC_SUBST(glibcpp_builddir)
59 AC_SUBST(glibcpp_srcdir)
61 dnl This is here just to satisfy automake.
62 ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
64 # Will set LN_S to either 'ln -s' or 'ln'. With autoconf 2.50+, can also
65 # be 'cp -p' if linking isn't available.
66 #ac_cv_prog_LN_S='cp -p'
69 # We use these options to decide which functions to include.
70 AC_ARG_WITH(target-subdir,
71 [ --with-target-subdir=SUBDIR
72 configuring in a subdirectory])
73 AC_ARG_WITH(cross-host,
74 [ --with-cross-host=HOST configuring with a cross compiler])
76 glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3
77 AC_SUBST(glibcpp_basedir)
79 # Never versions of autoconf add an underscore to these functions.
80 # Prevent future problems ...
81 ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))])
82 ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))])
83 ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))])
84 ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))])
88 # FIXME: We temporarily define our own version of AC_PROG_CC. This is
89 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
90 # are probably using a cross compiler, which will not be able to fully
91 # link an executable. This should really be fixed in autoconf
94 AC_DEFUN(LIB_AC_PROG_CC,
95 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
96 dnl Fool anybody using AC_PROG_CC.
97 AC_PROVIDE([AC_PROG_CC])
98 AC_CHECK_PROG(CC, gcc, gcc)
99 if test -z "$CC"; then
100 AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
101 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
106 if test $ac_cv_prog_gcc = yes; then
108 dnl Check whether -g works, even if CFLAGS is set, in case the package
109 dnl plays around with CFLAGS (such as to build both debugging and
110 dnl normal versions of a library), tasteless as that idea is.
111 ac_test_CFLAGS="${CFLAGS+set}"
112 ac_save_CFLAGS="$CFLAGS"
115 if test "$ac_test_CFLAGS" = set; then
116 CFLAGS="$ac_save_CFLAGS"
117 elif test $ac_cv_prog_cc_g = yes; then
124 test "${CFLAGS+set}" = set || CFLAGS="-g"
130 # Can't just call these here as g++ requires libstc++ to be built....
133 # Likewise for AC_PROG_CXX.
134 AC_DEFUN(LIB_AC_PROG_CXX,
135 [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
136 dnl Fool anybody using AC_PROG_CXX.
137 AC_PROVIDE([AC_PROG_CXX])
138 # Use glibcpp_CXX so that we do not cause CXX to be cached with the
139 # flags that come in CXX while configuring libstdc++. They're different
140 # from those used for all other target libraries. If CXX is set in
141 # the environment, respect that here.
143 AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
144 AC_SUBST(glibcpp_CXX)
146 test -z "$glibcpp_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
150 if test $ac_cv_prog_gxx = yes; then
152 dnl Check whether -g works, even if CXXFLAGS is set, in case the package
153 dnl plays around with CXXFLAGS (such as to build both debugging and
154 dnl normal versions of a library), tasteless as that idea is.
155 ac_test_CXXFLAGS="${CXXFLAGS+set}"
156 ac_save_CXXFLAGS="$CXXFLAGS"
159 if test "$ac_test_CXXFLAGS" = set; then
160 CXXFLAGS="$ac_save_CXXFLAGS"
161 elif test $ac_cv_prog_cxx_g = yes; then
168 test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
174 # For some reason, gettext needs this.
177 AC_CHECK_TOOL(AS, as)
178 AC_CHECK_TOOL(AR, ar)
179 AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
184 # We need AC_EXEEXT to keep automake happy in cygnus mode. However,
185 # at least currently, we never actually build a program, so we never
186 # need to use $(EXEEXT). Moreover, the test for EXEEXT normally
187 # fails, because we are probably configuring with a cross compiler
188 # which cant create executables. So we include AC_EXEEXT to keep
189 # automake happy, but we dont execute it, since we dont care about
192 # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
193 # to nothing, so nothing would remain between `then' and `fi' if it
194 # were not for the `:' below.
199 . [$]{glibcpp_basedir}/configure.host
201 case [$]{glibcpp_basedir} in
202 /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;;
203 *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;;
206 # This does for the target what configure.host does for the host. In
207 # addition to possibly modifying the same flags, it also sets up symlinks.
215 dnl Check to see if g++ can compile this library, and if so, if any version-
216 dnl specific precautions need to be taken.
218 dnl GLIBCPP_CHECK_COMPILER_VERSION
219 AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [
220 if test ! -f stamp-sanity-compiler; then
221 AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3])
228 ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above]))
230 AC_MSG_RESULT($gpp_satisfactory)
231 touch stamp-sanity-compiler
237 dnl Tests for newer compiler features, or features that are present in newer
238 dnl compiler versions but not older compiler versions still in use, should
241 dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the
242 dnl new inlining code or the new system_header pragma will die on -Werror.
243 dnl Leave it out by default and use maint-mode to use it.
245 dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if
246 dnl compiler supports it and the user has not requested debug mode.
248 dnl GLIBCPP_CHECK_COMPILER_FEATURES
249 AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
250 # All these tests are for C++; save the language and the compiler flags.
251 # The CXXFLAGS thing is suspicious, but based on similar bits previously
252 # found in GLIBCPP_CONFIGURE.
255 ac_test_CXXFLAGS="${CXXFLAGS+set}"
256 ac_save_CXXFLAGS="$CXXFLAGS"
258 # Check for maintainer-mode bits.
259 if test x"$USE_MAINTAINER_MODE" = xno; then
265 # Check for -ffunction-sections -fdata-sections
266 AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
267 CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
268 AC_TRY_COMPILE(, [int foo;
269 ], [ac_fdsections=yes], [ac_fdsections=no])
270 if test "$ac_test_CXXFLAGS" = set; then
271 CXXFLAGS="$ac_save_CXXFLAGS"
273 # this is the suspicious part
276 if test x"$ac_fdsections" = x"yes" &&
277 test x"$enable_debug" = x"no"; then
278 SECTION_FLAGS='-ffunction-sections -fdata-sections'
280 AC_MSG_RESULT($ac_fdsections)
284 AC_SUBST(SECTION_FLAGS)
289 dnl If GNU ld is in use, check to see if tricky linker opts can be used. If
290 dnl the native linker is in use, all variables will be defined to something
291 dnl safe (like an empty string).
293 dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible.
294 dnl Define OPT_LDFLAGS='-Wl,-O1' if possible.
296 dnl GLIBCPP_CHECK_LINKER_FEATURES
297 AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [
298 # If we're not using GNU ld, then there's no point in even trying these
299 # tests. Check for that first. We should have already tested for gld
300 # by now (in libtool), but require it now just to be safe...
303 AC_REQUIRE([AC_PROG_LD])
306 if test "$ac_cv_prog_gnu_ld" = "notbroken"; then
307 # GNU ld it is! Joy and bunny rabbits!
309 # All these tests are for C++; save the language and the compiler flags.
310 # Need to do this so that g++ won't try to link in libstdc++
311 ac_test_CFLAGS="${CFLAGS+set}"
312 ac_save_CFLAGS="$CFLAGS"
313 CFLAGS='-x c++ -Wl,--gc-sections'
315 # Check for -Wl,--gc-sections
316 # XXX This test is broken at the moment, as symbols required for
317 # linking are now in libsupc++ (not built yet.....). In addition,
318 # this test has cored on solaris in the past. In addition,
319 # --gc-sections doesn't really work at the moment (keeps on discarding
320 # used sections, first .eh_frame and now some of the glibc sections for
321 # iconv). Bzzzzt. Thanks for playing, maybe next time.
322 AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
330 ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes])
331 if test "$ac_test_CFLAGS" = set; then
332 CFLAGS="$ac_save_CFLAGS"
334 # this is the suspicious part
337 if test "$ac_sectionLDflags" = "yes"; then
338 SECTION_LDFLAGS='-Wl,--gc-sections'
340 AC_MSG_RESULT($ac_sectionLDflags)
343 # Set linker optimization flags.
344 if test x"$ac_cv_prog_gnu_ld" = x"yes" &&
345 test x"$enable_debug" = x"no"; then
346 OPT_LDFLAGS='-Wl,-O1'
349 AC_SUBST(SECTION_LDFLAGS)
350 AC_SUBST(OPT_LDFLAGS)
355 dnl Check to see if the (math function) argument passed is
356 dnl declared when using the c++ compiler
357 dnl ASSUMES argument is a math function with ONE parameter
359 dnl GLIBCPP_CHECK_MATH_DECL_1
360 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [
361 AC_MSG_CHECKING([for $1 declaration])
362 if test x${glibcpp_cv_func_$1_use+set} != xset; then
363 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
366 AC_TRY_COMPILE([#include <math.h>
372 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
376 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
380 dnl Check to see if the (math function) argument passed is
381 dnl 1) declared when using the c++ compiler
382 dnl 2) has "C" linkage
383 dnl 3) if not, see if 1) and 2) for argument prepended with '_'
385 dnl Define HAVE_CARGF etc if "cargf" is declared and links
387 dnl argument 1 is name of function to check
389 dnl ASSUMES argument is a math function with ONE parameter
391 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1
392 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [
393 GLIBCPP_CHECK_MATH_DECL_1($1)
394 if test x$glibcpp_cv_func_$1_use = x"yes"; then
397 GLIBCPP_CHECK_MATH_DECL_1(_$1)
398 if test x$glibcpp_cv_func__$1_use = x"yes"; then
406 dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of
407 dnl of functions at once. It's an all-or-nothing check -- either
408 dnl HAVE_XYZ is defined for each of the functions, or for none of them.
409 dnl Doing it this way saves significant configure time.
410 AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [
411 AC_MSG_CHECKING([for $1 functions])
412 AC_CACHE_VAL(glibcpp_cv_func_$2_use, [
415 AC_TRY_COMPILE([#include <math.h>],
416 [ `for x in $3; do echo "$x (0);"; done` ],
417 [glibcpp_cv_func_$2_use=yes],
418 [glibcpp_cv_func_$2_use=no])
420 AC_MSG_RESULT($glibcpp_cv_func_$2_use)
421 if test x$glibcpp_cv_func_$2_use = x"yes"; then
427 dnl Check to see if the (math function) argument passed is
428 dnl declared when using the c++ compiler
429 dnl ASSUMES argument is a math function with TWO parameters
431 dnl GLIBCPP_CHECK_MATH_DECL_2
432 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [
433 AC_MSG_CHECKING([for $1 declaration])
434 if test x${glibcpp_cv_func_$1_use+set} != xset; then
435 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
438 AC_TRY_COMPILE([#include <math.h>],
440 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
444 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
448 dnl Check to see if the (math function) argument passed is
449 dnl 1) declared when using the c++ compiler
450 dnl 2) has "C" linkage
452 dnl Define HAVE_CARGF etc if "cargf" is declared and links
454 dnl argument 1 is name of function to check
456 dnl ASSUMES argument is a math function with TWO parameters
458 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2
459 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
460 GLIBCPP_CHECK_MATH_DECL_2($1)
461 if test x$glibcpp_cv_func_$1_use = x"yes"; then
464 GLIBCPP_CHECK_MATH_DECL_2(_$1)
465 if test x$glibcpp_cv_func__$1_use = x"yes"; then
473 dnl Check to see if the (math function) argument passed is
474 dnl declared when using the c++ compiler
475 dnl ASSUMES argument is a math function with THREE parameters
477 dnl GLIBCPP_CHECK_MATH_DECL_3
478 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [
479 AC_MSG_CHECKING([for $1 declaration])
480 if test x${glibcpp_cv_func_$1_use+set} != xset; then
481 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
484 AC_TRY_COMPILE([#include <math.h>],
486 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
490 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
494 dnl Check to see if the (math function) argument passed is
495 dnl 1) declared when using the c++ compiler
496 dnl 2) has "C" linkage
498 dnl Define HAVE_CARGF etc if "cargf" is declared and links
500 dnl argument 1 is name of function to check
502 dnl ASSUMES argument is a math function with THREE parameters
504 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3
505 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [
506 GLIBCPP_CHECK_MATH_DECL_3($1)
507 if test x$glibcpp_cv_func_$1_use = x"yes"; then
510 GLIBCPP_CHECK_MATH_DECL_3(_$1)
511 if test x$glibcpp_cv_func__$1_use = x"yes"; then
519 dnl Check to see if the (stdlib function) argument passed is
520 dnl 1) declared when using the c++ compiler
521 dnl 2) has "C" linkage
523 dnl argument 1 is name of function to check
525 dnl ASSUMES argument is a math function with TWO parameters
527 dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2
528 AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [
529 AC_MSG_CHECKING([for $1 declaration])
530 if test x${glibcpp_cv_func_$1_use+set} != xset; then
531 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
534 AC_TRY_COMPILE([#include <stdlib.h>],
536 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
540 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
541 if test x$glibcpp_cv_func_$1_use = x"yes"; then
548 dnl Because the builtins are picky picky picky about the arguments they take,
549 dnl do an explict linkage tests here.
550 dnl Check to see if the (math function) argument passed is
551 dnl 1) declared when using the c++ compiler
552 dnl 2) has "C" linkage
554 dnl Define HAVE_CARGF etc if "cargf" is declared and links
556 dnl argument 1 is name of function to check
558 dnl ASSUMES argument is a math function with ONE parameter
560 dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
561 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
562 AC_MSG_CHECKING([for $1 declaration])
563 if test x${glibcpp_cv_func_$1_use+set} != xset; then
564 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
567 AC_TRY_COMPILE([#include <math.h>],
569 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
573 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
574 if test x$glibcpp_cv_func_$1_use = x"yes"; then
575 AC_MSG_CHECKING([for $1 linkage])
576 if test x${glibcpp_cv_func_$1_link+set} != xset; then
577 AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
578 AC_TRY_LINK([#include <math.h>],
580 [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
583 AC_MSG_RESULT($glibcpp_cv_func_$1_link)
584 if test x$glibcpp_cv_func_$1_link = x"yes"; then
585 ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
586 AC_DEFINE_UNQUOTED(${ac_tr_func})
593 dnl Check to see what builtin math functions are supported
595 dnl check for __builtin_abs
596 dnl check for __builtin_fabsf
597 dnl check for __builtin_fabs
598 dnl check for __builtin_fabl
599 dnl check for __builtin_labs
600 dnl check for __builtin_sqrtf
601 dnl check for __builtin_sqrtl
602 dnl check for __builtin_fsqrt
603 dnl check for __builtin_sinf
604 dnl check for __builtin_sin
605 dnl check for __builtin_sinl
606 dnl check for __builtin_cosf
607 dnl check for __builtin_cos
608 dnl check for __builtin_cosl
610 dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
611 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
612 dnl Test for builtin math functions.
613 dnl These are made in gcc/c-common.c
614 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
615 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
616 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
617 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
618 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
620 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
621 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt)
622 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
624 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
625 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
626 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
628 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
629 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
630 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
632 dnl There is, without a doubt, a more elegant way to have these
633 dnl names exported so that they won't be stripped out of acconfig.h by
634 dnl autoheader. I leave this as an exercise to somebody less frustrated
635 dnl than I.... please email the libstdc++ list if you can figure out a
636 dnl more elegant approach (see autoconf/acgen.m4 and specifically
637 dnl AC_CHECK_FUNC for things to steal.)
639 if test x$dummyvar = x"yes"; then
640 AC_DEFINE(HAVE___BUILTIN_ABS)
641 AC_DEFINE(HAVE___BUILTIN_LABS)
642 AC_DEFINE(HAVE___BUILTIN_COS)
643 AC_DEFINE(HAVE___BUILTIN_COSF)
644 AC_DEFINE(HAVE___BUILTIN_COSL)
645 AC_DEFINE(HAVE___BUILTIN_FABS)
646 AC_DEFINE(HAVE___BUILTIN_FABSF)
647 AC_DEFINE(HAVE___BUILTIN_FABSL)
648 AC_DEFINE(HAVE___BUILTIN_SIN)
649 AC_DEFINE(HAVE___BUILTIN_SINF)
650 AC_DEFINE(HAVE___BUILTIN_SINL)
651 AC_DEFINE(HAVE___BUILTIN_FSQRT)
652 AC_DEFINE(HAVE___BUILTIN_SQRTF)
653 AC_DEFINE(HAVE___BUILTIN_SQRTL)
659 dnl Check to see what the underlying c library
660 dnl These checks need to do two things:
661 dnl 1) make sure the name is declared when using the c++ compiler
662 dnl 2) make sure the name has "C" linkage
663 dnl This might seem like overkill but experience has shown that it's not...
665 dnl Define HAVE_STRTOLD if "strtold" is declared and links
666 dnl Define HAVE_STRTOF if "strtof" is declared and links
667 dnl Define HAVE_DRAND48 if "drand48" is declared and links
669 dnl GLIBCPP_CHECK_STDLIB_SUPPORT
670 AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [
671 ac_test_CXXFLAGS="${CXXFLAGS+set}"
672 ac_save_CXXFLAGS="$CXXFLAGS"
673 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
675 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
676 AC_CHECK_FUNCS(drand48)
678 CXXFLAGS="$ac_save_CXXFLAGS"
683 dnl Check to see what the underlying c library or math library is like.
684 dnl These checks need to do two things:
685 dnl 1) make sure the name is declared when using the c++ compiler
686 dnl 2) make sure the name has "C" linkage
687 dnl This might seem like overkill but experience has shown that it's not...
689 dnl Define HAVE_CARGF etc if "cargf" is found.
691 dnl GLIBCPP_CHECK_MATH_SUPPORT
692 AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [
693 ac_test_CXXFLAGS="${CXXFLAGS+set}"
694 ac_save_CXXFLAGS="$CXXFLAGS"
695 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
698 AC_CHECK_LIB(m, sin, libm="-lm")
702 dnl Check to see if certain C math functions exist.
703 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
704 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
705 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
706 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
707 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
708 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
709 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
710 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypot)
712 dnl Check to see if basic C math functions have float versions.
713 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig,
718 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
721 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
722 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
723 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
724 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
725 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
726 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
727 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf)
728 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
729 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
730 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
731 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
732 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
733 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
734 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
735 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
737 dnl Check to see if basic C math functions have long double versions.
738 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig,
743 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round,
746 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
747 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
748 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
749 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
750 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
751 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
752 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
753 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
754 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl)
755 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
756 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
757 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
758 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
759 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
760 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
761 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
762 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
764 dnl Some runtimes have these functions with a preceding underscore. Please
765 dnl keep this sync'd with the one above. And if you add any new symbol,
766 dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
767 dnl Check to see if certain C math functions exist.
769 dnl Check to see if basic C math functions have float versions.
770 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
772 _acosf _asinf _atanf \
774 _coshf _sinhf _tanhf)
775 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round,
779 dnl Check to see if basic C math functions have long double versions.
780 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
782 _acosl _asinl _atanl \
784 _coshl _sinhl _tanhl)
785 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
790 CXXFLAGS="$ac_save_CXXFLAGS"
795 dnl Check to see if there is native support for complex
797 dnl Don't compile bits in math/* if native support exits.
799 dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found.
801 dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
802 AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [
803 dnl Check for complex versions of math functions of platform.
804 AC_CHECK_LIB(m, main)
805 AC_REPLACE_MATHFUNCS(nan copysignf)
807 dnl Compile the long double complex functions only if the function
808 dnl provides the non-complex long double functions that are needed.
809 dnl Currently this includes copysignl, which should be
810 dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above.
811 USE_COMPLEX_LONG_DOUBLE=no
812 if test x$ac_cv_func_copysignl = x"yes"; then
813 USE_COMPLEX_LONG_DOUBLE=yes
814 AC_REPLACE_MATHFUNCS(signbitl)
817 AC_SUBST(USE_COMPLEX_LONG_DOUBLE)
821 dnl Check to see what architecture and operating system we are compiling
822 dnl for. Also, if architecture- or OS-specific flags are required for
823 dnl compilation, pick them up here.
825 dnl GLIBCPP_CHECK_TARGET
826 AC_DEFUN(GLIBCPP_CHECK_TARGET, [
827 . [$]{glibcpp_basedir}/configure.target
828 AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
829 AC_MSG_RESULT(OS config directory is $os_include_dir)
834 dnl Check to see if this target can enable the wchar_t parts of libstdc++.
835 dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
836 dnl must have been previously checked.)
838 dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
839 dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h
841 dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
842 AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
844 dnl Test wchar.h for mbstate_t, which is needed for char_traits and
845 dnl others even if wchar_t support is not on.
846 AC_MSG_CHECKING([for mbstate_t])
847 AC_TRY_COMPILE([#include <wchar.h>],
848 [mbstate_t teststate;],
849 have_mbstate_t=yes, have_mbstate_t=no)
850 AC_MSG_RESULT($have_mbstate_t)
851 if test x"$have_mbstate_t" = xyes; then
852 AC_DEFINE(HAVE_MBSTATE_T)
855 dnl Sanity check for existence of ISO C99 headers for extended encoding.
856 AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
857 AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
859 dnl Only continue checking if the ISO C99 headers exist and support is on.
860 if test x"$ac_has_wchar_h" = xyes &&
861 test x"$ac_has_wctype_h" = xyes &&
862 test x"$enable_c_mbchar" != xno; then
864 dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
865 dnl numeric_limits can instantiate type_traits<wchar_t>
866 AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
867 AC_TRY_COMPILE([#include <wchar.h>],
868 [int i = WCHAR_MIN; int j = WCHAR_MAX;],
869 has_wchar_minmax=yes, has_wchar_minmax=no)
870 AC_MSG_RESULT($has_wchar_minmax)
872 dnl Test wchar.h for WEOF, which is what we use to determine whether
873 dnl to specialize for char_traits<wchar_t> or not.
874 AC_MSG_CHECKING([for WEOF])
877 #include <stddef.h>],
879 has_weof=yes, has_weof=no)
880 AC_MSG_RESULT($has_weof)
882 dnl Tests for wide character functions used in char_traits<wchar_t>.
884 AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \
887 dnl Checks for names injected into std:: by the c_std headers.
888 AC_CHECK_FUNCS(btowc wctob fgetwc fgetwc fgetws fputwc fputws fwide \
889 fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \
890 vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
891 mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \
892 wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
893 wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \
896 AC_MSG_CHECKING([for ISO C99 wchar_t support])
897 if test x"$has_weof" = xyes &&
898 test x"$has_wchar_minmax" = xyes &&
899 test x"$ac_wfuncs" = xyes; then
900 ac_isoC99_wchar_t=yes
904 AC_MSG_RESULT($ac_isoC99_wchar_t)
906 dnl Use iconv for wchar_t to char conversions. As such, check for
907 dnl X/Open Portability Guide, version 2 features (XPG2).
908 AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
909 AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
911 dnl Check for existence of libiconv.a providing XPG2 wchar_t support.
912 AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
914 LIBS="$LIBS $libiconv"
916 AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \
917 ac_XPG2funcs=yes, ac_XPG2funcs=no)
921 AC_MSG_CHECKING([for XPG2 wchar_t support])
922 if test x"$ac_has_iconv_h" = xyes &&
923 test x"$ac_has_langinfo_h" = xyes &&
924 test x"$ac_XPG2funcs" = xyes; then
929 AC_MSG_RESULT($ac_XPG2_wchar_t)
931 dnl At the moment, only enable wchar_t specializations if all the
932 dnl above support is present.
933 AC_MSG_CHECKING([for enabled wchar_t specializations])
934 if test x"$ac_isoC99_wchar_t" = xyes &&
935 test x"$ac_XPG2_wchar_t" = xyes; then
936 AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
942 dnl Wide characters disabled by the user.
943 AC_MSG_WARN([wchar_t support disabled.])
949 dnl Check for special debugging mode; not for production use.
951 dnl GLIBCPP_ENABLE_DEBUG
952 dnl --enable-debug sets '-ggdb3 -O0'.
953 dnl --disable-debug sets '-g' and whatever optimization options the
954 dnl compiler can handle.
955 dnl + --enable-maintainer-mode automatically defaults this to on.
956 dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...?
957 dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
958 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
959 dnl defaults to `no'.
960 AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl
961 define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
963 changequote(<<, >>)dnl
964 << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
966 [case "${enableval}" in
967 yes) enable_debug=yes ;;
968 no) enable_debug=no ;;
969 *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
971 enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
973 dnl Option parsed, now set things appropriately
974 case "${enable_debug}" in
976 DEBUG_FLAGS='-O0 -ggdb3'
982 AC_SUBST(DEBUG_FLAGS)
987 dnl Check for "unusual" flags to pass to the compiler while building.
989 dnl GLIBCPP_ENABLE_CXX_FLAGS
990 dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing
991 dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc.
992 dnl Somehow this same set of flags must be passed when [re]building
994 dnl --disable-cxx-flags passes nothing.
995 dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html
996 dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html
997 dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html
998 dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags)
999 dnl If "default flags" is an empty string (or "none"), the effect is
1000 dnl the same as --disable or --enable=no.
1001 AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl
1002 define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
1003 AC_ARG_ENABLE(cxx-flags,
1004 changequote(<<, >>)dnl
1005 << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library;
1006 [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
1007 changequote([, ])dnl
1008 [case "x$enableval" in
1010 AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;;
1012 enable_cxx_flags='' ;;
1014 enable_cxx_flags="$enableval" ;;
1016 enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT')
1018 dnl Thinko on my part during design. This kludge is the workaround.
1019 if test "$enable_cxx_flags" = "none"; then
1020 enable_cxx_flags='';
1023 dnl Run through flags (either default or command-line) and set anything
1024 dnl extra (e.g., #defines) that must accompany particular g++ options.
1025 if test -n "$enable_cxx_flags"; then
1026 for f in $enable_cxx_flags; do
1030 *) # and we're trying to pass /what/ exactly?
1031 AC_MSG_ERROR([compiler flags start with a -]) ;;
1035 EXTRA_CXX_FLAGS="$enable_cxx_flags"
1036 AC_SUBST(EXTRA_CXX_FLAGS)
1041 dnl Check for which locale library to use: gnu or generic.
1043 dnl GLIBCPP_ENABLE_CLOCALE
1044 dnl --enable-clocale=gnu sets config/locale/c_locale_gnu.cc and friends
1045 dnl --enable-clocale=generic sets config/locale/c_locale_generic.cc and friends
1047 dnl default is generic
1049 AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
1050 AC_MSG_CHECKING([for clocale to use])
1051 AC_ARG_ENABLE(clocale,
1052 [ --enable-clocale enable model for target locale package.
1053 --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic]
1055 if test x$enable_clocale = xno; then
1056 enable_clocale=generic
1058 enable_clocale=generic)
1060 enable_clocale_flag=$enable_clocale
1062 dnl Check if a valid locale package
1063 case x${enable_clocale_flag} in
1065 AC_MSG_RESULT(generic)
1067 # Don't use gettext.
1070 CLOCALE_H=config/locale/c_locale_generic.h
1071 CLOCALE_CC=config/locale/c_locale_generic.cc
1072 CCODECVT_H=config/locale/codecvt_specializations_generic.h
1073 CMESSAGES_H=config/locale/messages_members_generic.h
1074 CMESSAGES_CC=config/locale/messages_members_generic.cc
1075 CCOLLATE_CC=config/locale/collate_specializations_generic.cc
1080 # Declare intention to use gettext, and add support for specific
1082 # For some reason, ALL_LINGUAS has to be before AM_GNU_GETTEXT
1084 # Don't call AM_GNU_GETTEXT here. Instead, assume glibc.
1085 # Need to deal with MSGFMT, USE_NLS, and glibcpp_[P,M]OFILES
1088 # Export the build objects.
1089 for ling in $ALL_LINGUAS; do \
1090 glibcpp_MOFILES="$glibcpp_MOFILES $ling.mo"; \
1091 glibcpp_POFILES="$glibcpp_POFILES $ling.po"; \
1093 AC_SUBST(glibcpp_MOFILES)
1094 AC_SUBST(glibcpp_POFILES)
1096 CLOCALE_H=config/locale/c_locale_gnu.h
1097 CLOCALE_CC=config/locale/c_locale_gnu.cc
1098 CCODECVT_H=config/locale/codecvt_specializations_ieee_1003.1-200x.h
1099 CMESSAGES_H=config/locale/messages_members_gnu.h
1100 CMESSAGES_CC=config/locale/messages_members_gnu.cc
1101 CCOLLATE_CC=config/locale/collate_specializations_gnu.cc
1104 AC_MSG_RESULT(generic)
1106 # Don't use gettext.
1109 CLOCALE_H=config/locale/c_locale_ieee_1003.1-200x.h
1110 CLOCALE_CC=config/locale/c_locale_ieee_1003.1-200x.cc
1111 CCODECVT_H=config/locale/codecvt_specializations_ieee_1003.1-200x.h
1112 CMESSAGES_H=config/locale/messages_members_ieee_1003.1-200x.h
1113 CMESSAGES_CC=config/locale/messages_members_ieee_1003.1-200x.cc
1114 CCOLLATE_CC=config/locale/collate_specializations_generic.cc
1117 echo "$enable_clocale is an unknown locale package" 1>&2
1122 # This is where the testsuite looks for locale catalogs, using the
1123 # -DLOCALEDIR define during testsuite compilation.
1124 glibcpp_localedir=${glibcpp_builddir}/po/share/locale
1125 AC_SUBST(glibcpp_localedir)
1129 AC_SUBST(CCODECVT_H)
1130 AC_SUBST(CMESSAGES_H)
1131 AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc)
1132 AC_LINK_FILES($CMESSAGES_CC, src/messages.cc)
1133 AC_LINK_FILES($CCOLLATE_CC, src/collate.cc)
1138 dnl Check for which I/O library to use: libio, or something specific.
1140 dnl GLIBCPP_ENABLE_CSTDIO
1141 dnl --enable-cstdio=libio sets config/io/c_io_libio.h and friends
1143 dnl default is stdio
1145 AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
1146 AC_MSG_CHECKING([for cstdio to use])
1147 AC_ARG_ENABLE(cstdio,
1148 [ --enable-cstdio enable stdio for target io package.
1149 --enable-cstdio=LIB use LIB target-speific io package. [default=stdio]
1151 if test x$enable_cstdio = xno; then
1154 enable_cstdio=stdio)
1156 enable_cstdio_flag=$enable_cstdio
1158 dnl Check if a valid I/O package
1159 case x${enable_cstdio_flag} in
1161 CSTDIO_H=config/io/c_io_libio.h
1162 BASIC_FILE_H=config/io/basic_file_libio.h
1163 BASIC_FILE_CC=config/io/basic_file_libio.cc
1164 AC_MSG_RESULT(libio)
1166 # see if we are on a system with libio native (ie, linux)
1167 AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
1169 # Need to check and see what version of glibc is being used. If
1170 # it's not glibc-2.2 or higher, then we'll need to go ahead and
1171 # compile most of libio for linux systems.
1172 if test x$has_libio = x"yes"; then
1175 AC_MSG_CHECKING([for glibc version >= 2.2])
1176 AC_EGREP_CPP([ok], [
1177 #include <features.h>
1178 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1181 ], glibc_satisfactory=yes, glibc_satisfactory=no)
1182 AC_MSG_RESULT($glibc_satisfactory)
1186 # XXX at the moment, admit defeat and force the recompilation
1187 # XXX of glibc even on glibc-2.2 systems, because libio is not synched.
1188 glibc_satisfactory=no
1190 if test x$glibc_satisfactory = x"yes"; then
1195 # bkoz XXX need to add checks to enable this
1196 # pme XXX here's a first pass at such a check
1197 if test x$enable_c_mbchar != xno; then
1205 # Using libio, but <libio.h> doesn't exist on the target system. . .
1207 # bkoz XXX need to add checks to enable this
1208 # pme XXX here's a first pass at such a check
1209 if test x$enable_c_mbchar != xno; then
1216 xstdio | x | xno | xnone | xyes)
1218 CSTDIO_H=config/io/c_io_stdio.h
1219 BASIC_FILE_H=config/io/basic_file_stdio.h
1220 BASIC_FILE_CC=config/io/basic_file_stdio.cc
1221 AC_MSG_RESULT(stdio)
1223 # We're not using stdio.
1228 echo "$enable_cstdio is an unknown io package" 1>&2
1233 AC_SUBST(BASIC_FILE_H)
1234 AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc)
1236 # 2000-08-04 bkoz hack
1237 CCODECVT_C=config/io/c_io_libio_codecvt.c
1238 AC_SUBST(CCODECVT_C)
1239 # 2000-08-04 bkoz hack
1241 AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO,
1242 test "$need_libio" = yes || test "$need_wlibio" = yes)
1243 AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
1244 AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
1245 if test "$need_libio" = yes || test "$need_wlibio" = yes; then
1246 libio_la=../libio/libio.la
1255 dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
1256 dnl We must stage the required headers so that they will be installed
1257 dnl with the library (unlike libgcc, the STL implementation is provided
1258 dnl solely within headers). Since we must not inject random user-space
1259 dnl macro names into user-provided C++ code, we first stage into <file>-in
1260 dnl and process to <file> with an output command. The reason for a two-
1261 dnl stage process here is to correctly handle $srcdir!=$objdir without
1262 dnl having to write complex code (the sed commands to clean the macro
1263 dnl namespace are complex and fragile enough as it is). We must also
1264 dnl add a relative path so that -I- is supported properly.
1266 AC_DEFUN(GLIBCPP_ENABLE_THREADS, [
1267 AC_MSG_CHECKING([for thread model used by GCC])
1268 target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
1269 AC_MSG_RESULT([$target_thread_file])
1271 if test $target_thread_file != single; then
1272 AC_DEFINE(HAVE_GTHR_DEFAULT)
1273 AC_DEFINE(_GLIBCPP_SUPPORTS_WEAK, __GXX_WEAK__)
1276 glibcpp_thread_h=gthr-$target_thread_file.h
1277 AC_SUBST(glibcpp_thread_h)
1282 dnl Check for exception handling support. If an explicit enable/disable
1283 dnl sjlj exceptions is given, we don't have to detect. Otherwise the
1284 dnl target may or may not support call frame exceptions.
1286 dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS
1287 dnl --enable-sjlj-exceptions forces the use of builtin setjmp.
1288 dnl --disable-sjlj-exceptions forces the use of call frame unwinding.
1290 dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it.
1292 AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [
1293 AC_MSG_CHECKING([for exception model to use])
1296 AC_ARG_ENABLE(sjlj-exceptions,
1297 [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
1299 [dnl Botheration. Now we've got to detect the exception model.
1300 dnl Link tests against libgcc.a are problematic since -- at least
1301 dnl as of this writing -- we've not been given proper -L bits for
1302 dnl single-tree newlib and libgloss.
1304 dnl This is what AC_TRY_COMPILE would do if it didn't delete the
1305 dnl conftest files before we got a change to grep them first.
1306 cat > conftest.$ac_ext << EOF
1307 [#]line __oline__ "configure"
1316 old_CXXFLAGS="$CXXFLAGS"
1318 if AC_TRY_EVAL(ac_compile); then
1319 if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
1320 enable_sjlj_exceptions=yes
1321 elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
1322 enable_sjlj_exceptions=no
1325 CXXFLAGS="$old_CXXFLAGS"
1327 if test x$enable_sjlj_exceptions = xyes; then
1328 AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1,
1329 [Define if the compiler is configured for setjmp/longjmp exceptions.])
1330 ac_exception_model_name=sjlj
1331 elif test x$enable_sjlj_exceptions = xno; then
1332 ac_exception_model_name="call frame"
1334 AC_MSG_ERROR([unable to detect exception model])
1337 AC_MSG_RESULT($ac_exception_model_name)
1342 dnl Check for ISO/IEC 9899:1999 "C99" support.
1344 dnl GLIBCPP_ENABLE_C99
1345 dnl --enable-c99 defines _GLIBCPP_USE_C99
1346 dnl --disable-c99 leaves _GLIBCPP_USE_C99 undefined
1347 dnl + Usage: GLIBCPP_ENABLE_C99[(DEFAULT)]
1348 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1349 dnl defaults to `no'.
1350 dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'.
1352 dnl GLIBCPP_ENABLE_C99
1353 AC_DEFUN(GLIBCPP_ENABLE_C99, [dnl
1354 define([GLIBCPP_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl
1357 changequote(<<, >>)dnl
1358 <<--enable-c99 turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCPP_ENABLE_C99_DEFAULT],
1359 changequote([, ])dnl
1360 [case "$enableval" in
1361 yes) enable_c99=yes ;;
1362 no) enable_c99=no ;;
1363 *) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;;
1365 enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl
1370 # Check for the existence of <math.h> functions used if C99 is enabled.
1372 AC_MSG_CHECKING([for ISO C99 support in <math.h>])
1373 AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no])
1374 AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no])
1375 AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no])
1376 AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no])
1377 AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no])
1378 AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no])
1379 AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no])
1380 AC_TRY_COMPILE([#include <math.h>],
1381 [isgreaterequal(0.0,0.0);],, [ac_c99_math=no])
1382 AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no])
1383 AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no])
1384 AC_TRY_COMPILE([#include <math.h>],
1385 [islessgreater(0.0,0.0);],, [ac_c99_math=no])
1386 AC_TRY_COMPILE([#include <math.h>],
1387 [isunordered(0.0,0.0);],, [ac_c99_math=no])
1388 AC_MSG_RESULT($ac_c99_math)
1390 # Check for the existence in <stdio.h> of vscanf, et. al.
1392 AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
1393 AC_TRY_COMPILE([#include <stdio.h>],
1394 [snprintf("12", 0, "%i");],, [ac_c99_stdio=no])
1395 AC_TRY_COMPILE([#include <stdio.h>
1397 void foo(char* fmt, ...)
1398 {va_list args; va_start(args, fmt);
1399 vfscanf(stderr, "%i", args);}],
1400 [],, [ac_c99_stdio=no])
1401 AC_TRY_COMPILE([#include <stdio.h>
1403 void foo(char* fmt, ...)
1404 {va_list args; va_start(args, fmt);
1405 vscanf("%i", args);}],
1406 [],, [ac_c99_stdio=no])
1407 AC_TRY_COMPILE([#include <stdio.h>
1409 void foo(char* fmt, ...)
1410 {va_list args; va_start(args, fmt);
1411 vsnprintf(fmt, 0, "%i", args);}],
1412 [],, [ac_c99_stdio=no])
1413 AC_TRY_COMPILE([#include <stdio.h>
1415 void foo(char* fmt, ...)
1416 {va_list args; va_start(args, fmt);
1417 vsscanf(fmt, "%i", args);}],
1418 [],, [ac_c99_stdio=no])
1419 AC_MSG_RESULT($ac_c99_stdio)
1421 # Check for the existence in <stdlib.h> of lldiv_t, et. al.
1423 AC_MSG_CHECKING([for lldiv_t declaration])
1424 AC_CACHE_VAL(ac_c99_lldiv_t, [
1425 AC_TRY_COMPILE([#include <stdlib.h>],
1427 [ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
1429 AC_MSG_RESULT($ac_c99_lldiv_t)
1431 AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
1432 AC_TRY_COMPILE([#include <stdlib.h>],
1433 [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no])
1434 AC_TRY_COMPILE([#include <stdlib.h>],
1435 [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no])
1436 AC_TRY_COMPILE([#include <stdlib.h>],
1437 [char* tmp; strtoll("gnu", &tmp, 10);],, [ac_c99_stdlib=no])
1438 AC_TRY_COMPILE([#include <stdlib.h>],
1439 [char* tmp; strtoull("gnu", &tmp, 10);],, [ac_c99_stdlib=no])
1440 AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no])
1441 AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no])
1442 AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no])
1443 AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no])
1444 if test x"$ac_c99_lldiv_t" = x"no"; then
1447 AC_MSG_RESULT($ac_c99_stdlib)
1449 # Check for the existence of <wchar.h> functions used if C99 is enabled.
1450 # XXX the wchar.h checks should be rolled into the general C99 bits.
1452 AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
1453 AC_TRY_COMPILE([#include <wchar.h>],
1454 [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
1455 AC_TRY_COMPILE([#include <wchar.h>],
1456 [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
1457 AC_TRY_COMPILE([#include <wchar.h>],
1458 [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
1459 AC_MSG_RESULT($ac_c99_wchar)
1461 AC_MSG_CHECKING([for enabled ISO C99 support])
1462 if test x"$ac_c99_math" = x"no" ||
1463 test x"$ac_c99_stdio" = x"no" ||
1464 test x"$ac_c99_stdlib" = x"no" ||
1465 test x"$ac_c99_wchar" = x"no"; then
1468 AC_MSG_RESULT($enable_c99)
1470 # Option parsed, now set things appropriately
1471 if test x"$enable_c99" = x"yes"; then
1472 AC_DEFINE(_GLIBCPP_USE_C99)
1480 dnl Check for template specializations for the 'long long' type extension.
1481 dnl NB: Must check for C99 support before calling _GLIBCPP_ENABLE_LONG_LONG
1483 dnl GLIBCPP_ENABLE_LONG_LONG
1484 dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG
1485 dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined
1486 dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)]
1487 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1488 dnl defaults to `no'.
1489 dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
1491 dnl GLIBCPP_ENABLE_LONG_LONG
1492 AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl
1493 define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
1495 AC_ARG_ENABLE(long-long,
1496 changequote(<<, >>)dnl
1497 <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT],
1498 changequote([, ])dnl
1499 [case "$enableval" in
1500 yes) enable_long_long=yes ;;
1501 no) enable_long_long=no ;;
1502 *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;;
1504 enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl
1506 # iostreams require strtoll, strtoull to compile. If the
1507 # GLIBCPP_ENABLE_C99 tests found these, and if C99 support is enabled,
1508 # go ahead and allow long long to be used.
1509 if test x"$enable_c99" = x"no"; then
1510 enable_long_long=no;
1513 # Option parsed, now set things appropriately
1514 AC_MSG_CHECKING([for enabled long long support])
1515 if test x"$enable_long_long" = xyes; then
1516 AC_DEFINE(_GLIBCPP_USE_LONG_LONG)
1518 AC_MSG_RESULT($enable_long_long)
1523 dnl Check for what kind of C headers to use.
1525 dnl GLIBCPP_ENABLE_CHEADERS
1526 dnl --enable-cheaders= [does stuff].
1527 dnl --disable-cheaders [does not do anything, really].
1528 dnl + This will eventually need to be 'c_shadow' by default.
1529 dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)]
1530 dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'.
1531 dnl If ommitted, it defaults to `c_std'.
1532 AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl
1533 define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl
1534 AC_MSG_CHECKING([for c header strategy to use])
1535 AC_ARG_ENABLE(cheaders,
1536 changequote(<<, >>)dnl
1537 << --enable-cheaders construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT],
1539 [case "$enableval" in
1544 enable_cheaders=c_std
1547 enable_cheaders=c_shadow
1549 *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
1552 enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT)
1553 AC_MSG_RESULT($enable_cheaders)
1555 dnl Option parsed, now set things appropriately
1556 case "$enable_cheaders" in
1558 CSHADOW_FLAGS="-fno-builtin"
1559 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_shadow'
1560 AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS)
1564 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_std'
1568 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c'
1572 AC_SUBST(CSHADOW_FLAGS)
1573 AC_SUBST(C_INCLUDE_DIR)
1574 AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow)
1579 dnl Check for wide character support. Has the same effect as the option
1580 dnl in gcc's configure, but in a form that autoconf can mess with.
1582 dnl GLIBCPP_ENABLE_C_MBCHAR
1583 dnl --enable-c-mbchar requests all the wchar_t stuff.
1584 dnl --disable-c-mbchar doesn't.
1585 dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)]
1586 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1587 dnl defaults to `no'.
1588 AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl
1589 define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl
1590 AC_ARG_ENABLE(c-mbchar,
1591 changequote(<<, >>)dnl
1592 << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT],
1593 changequote([, ])dnl
1594 [case "$enableval" in
1595 yes) enable_c_mbchar=yes ;;
1596 no) enable_c_mbchar=no ;;
1597 *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;;
1599 enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl
1600 dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no.
1605 dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's.
1607 dnl TOPLEVEL_INCLUDES
1608 dnl LIBMATH_INCLUDES
1609 dnl LIBSUPCXX_INCLUDES
1611 dnl CSHADOW_INCLUDES
1613 dnl GLIBCPP_EXPORT_INCLUDES
1614 AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
1615 # Root level of the build directory include sources.
1616 GLIBCPP_INCLUDES="-I${glibcpp_builddir}/include/${target_alias} -I${glibcpp_builddir}/include"
1618 # Passed down for canadian crosses.
1619 if test x"$CANADIAN" = xyes; then
1620 TOPLEVEL_INCLUDES='-I$(includedir)'
1623 LIBMATH_INCLUDES='-I$(top_srcdir)/libmath'
1625 LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
1627 if test x"$need_libio" = xyes; then
1628 LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio'
1629 AC_SUBST(LIBIO_INCLUDES)
1632 # Now, export this to all the little Makefiles....
1633 AC_SUBST(GLIBCPP_INCLUDES)
1634 AC_SUBST(TOPLEVEL_INCLUDES)
1635 AC_SUBST(LIBMATH_INCLUDES)
1636 AC_SUBST(LIBSUPCXX_INCLUDES)
1641 dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
1643 AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [
1644 # Optimization flags that are probably a good idea for thrill-seekers. Just
1645 # uncomment the lines below and make, everything else is ready to go...
1646 # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
1648 AC_SUBST(OPTIMIZE_CXXFLAGS)
1650 WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline'
1651 AC_SUBST(WARN_FLAGS)
1655 dnl GLIBCPP_EXPORT_INSTALL_INFO
1656 dnl calculates gxx_install_dir
1657 dnl exports glibcpp_toolexecdir
1658 dnl exports glibcpp_toolexeclibdir
1659 dnl exports glibcpp_prefixdir
1661 dnl Assumes cross_compiling bits already done, and with_cross_host in
1664 dnl GLIBCPP_EXPORT_INSTALL_INFO
1665 AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [
1666 # Assumes glibcpp_builddir, glibcpp_srcdir are alreay set up and
1667 # exported correctly in GLIBCPP_CONFIGURE.
1668 glibcpp_toolexecdir=no
1669 glibcpp_toolexeclibdir=no
1670 glibcpp_prefixdir=${prefix}
1672 AC_MSG_CHECKING([for interface version number])
1673 libstdcxx_interface=$INTERFACE
1674 AC_MSG_RESULT($libstdcxx_interface)
1676 # Process the option --with-gxx-include-dir=<path to include-files directory>
1677 AC_MSG_CHECKING([for --with-gxx-include-dir])
1678 AC_ARG_WITH(gxx-include-dir,
1679 [ --with-gxx-include-dir the installation directory for include files],
1680 [case "${withval}" in
1682 AC_MSG_ERROR(Missing directory for --with-gxx-include-dir)
1689 gxx_include_dir=${withval}
1691 esac], [gxx_include_dir=no])
1692 AC_MSG_RESULT($gxx_include_dir)
1694 # Process the option "--enable-version-specific-runtime-libs"
1695 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
1696 AC_ARG_ENABLE(version-specific-runtime-libs,
1697 [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
1698 [case "$enableval" in
1699 yes) version_specific_libs=yes ;;
1700 no) version_specific_libs=no ;;
1701 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
1703 version_specific_libs=no)dnl
1704 # Option set, now we can test it.
1705 AC_MSG_RESULT($version_specific_libs)
1707 if test $version_specific_libs = yes; then
1708 # Need the gcc compiler version to know where to install libraries
1709 # and header files if --enable-version-specific-runtime-libs option
1712 gcc_version_trigger=${srcdir}/../gcc/version.c
1713 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
1714 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1715 gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/g++
1716 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1717 glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
1721 # Default case for install directory for include files.
1722 if test $version_specific_libs = no &&
1723 test $gxx_include_dir = no; then
1724 gxx_include_dir='$(prefix)'/include/g++-${libstdcxx_interface}
1727 # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir
1728 # Install a library built with a cross compiler in tooldir, not libdir.
1729 if test x"$glibcpp_toolexecdir" = x"no"; then
1730 if test -n "$with_cross_host" &&
1731 test x"$with_cross_host" != x"no"; then
1732 glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
1733 glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)'
1735 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1736 glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)'
1740 AC_MSG_CHECKING([for install location])
1741 AC_MSG_RESULT($gxx_include_dir)
1743 AC_SUBST(glibcpp_prefixdir)
1744 AC_SUBST(gxx_include_dir)
1745 AC_SUBST(glibcpp_toolexecdir)
1746 AC_SUBST(glibcpp_toolexeclibdir)
1750 # Check for functions in math library.
1751 # Ulrich Drepper <drepper@cygnus.com>, 1998.
1753 # This file can be copied and used freely without restrictions. It can
1754 # be used in projects which are not available under the GNU Public License
1755 # but which still want to provide support for the GNU gettext functionality.
1756 # Please note that the actual code is *not* freely available.
1760 dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
1761 AC_DEFUN(AC_REPLACE_MATHFUNCS,
1762 [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])
1763 AC_SUBST(LIBMATHOBJS)dnl
1768 dnl This macro searches for a GNU version of make. If a match is found, the
1769 dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is
1770 dnl set to "#". This is useful for including a special features in a Makefile,
1771 dnl which cannot be handled by other versions of make. The variable
1772 dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists,
1773 dnl the empty string otherwise.
1775 dnl Here is an example of its use:
1777 dnl Makefile.in might contain:
1779 dnl # A failsafe way of putting a dependency rule into a makefile
1781 dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND)
1783 dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
1784 dnl @ifGNUmake@ include $(DEPEND)
1785 dnl @ifGNUmake@ endif
1787 dnl Then configure.in would normally contain:
1789 dnl CHECK_GNU_MAKE()
1790 dnl AC_OUTPUT(Makefile)
1792 dnl Then perhaps to cause gnu make to override any other make, we could do
1793 dnl something like this (note that GNU make always looks for GNUmakefile first):
1795 dnl if ! test x$_cv_gnu_make_command = x ; then
1796 dnl mv Makefile GNUmakefile
1797 dnl echo .DEFAULT: > Makefile ;
1798 dnl echo \ $_cv_gnu_make_command \$@ >> Makefile;
1801 dnl Then, if any (well almost any) other make is called, and GNU make also
1802 dnl exists, then the other make wraps the GNU make.
1804 dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
1805 dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
1807 dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending
1808 dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
1809 dnl #### conditional's subshell (" --version" is not a command), using a
1810 dnl #### different option to grep(1).
1812 dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not
1813 dnl #### ${MAKE:-make}).
1816 GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
1817 _cv_gnu_make_command='' ;
1818 dnl Search all the common names for GNU make
1819 for a in "${MAKE-make}" make gmake gnumake ; do
1820 if ( $a --version 2> /dev/null | grep -c GNU > /dev/null )
1822 _cv_gnu_make_command=$a ;
1827 dnl If there was a GNU version, then set @ifGNUmake@ to the empty
1828 dnl string, '#' otherwise
1829 if test "x$_cv_gnu_make_command" != "x" ; then
1838 dnl Check for headers for, and arguments to, the setrlimit() function.
1839 dnl Used only in testsuite_hooks.h.
1840 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT_ancilliary, [
1841 AC_TRY_COMPILE([#include <sys/resource.h>
1843 ], [ int f = RLIMIT_$1 ; ],
1844 [glibcpp_mresult=1], [glibcpp_mresult=0])
1845 AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcpp_mresult,
1846 [Only used in build directory testsuite_hooks.h.])
1848 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT, [
1849 setrlimit_have_headers=yes
1850 AC_CHECK_HEADERS(sys/resource.h unistd.h,
1852 setrlimit_have_headers=no)
1853 # If don't have the headers, then we can't run the tests now, and we
1854 # won't be seeing any of these during testsuite compilation.
1855 if test $setrlimit_have_headers = yes; then
1856 # Can't do these in a loop, else the resulting syntax is wrong.
1857 GLIBCPP_CHECK_SETRLIMIT_ancilliary(DATA)
1858 GLIBCPP_CHECK_SETRLIMIT_ancilliary(RSS)
1859 GLIBCPP_CHECK_SETRLIMIT_ancilliary(VMEM)
1860 GLIBCPP_CHECK_SETRLIMIT_ancilliary(AS)
1862 # Check for rlimit, setrlimit.
1863 AC_CACHE_VAL(ac_setrlimit, [
1864 AC_TRY_COMPILE([#include <sys/resource.h>
1867 [ struct rlimit r; setrlimit(0, &r);],
1868 [ac_setrlimit=yes], [ac_setrlimit=no])
1872 AC_MSG_CHECKING([for testsuite memory limit support])
1873 if test $setrlimit_have_headers = yes && test $ac_setrlimit = yes; then
1875 AC_DEFINE(_GLIBCPP_MEM_LIMITS)
1879 AC_MSG_RESULT($ac_mem_limits)
1884 dnl Does any necessary configuration of the testsuite directory. Generates
1885 dnl the testsuite_hooks.h header.
1887 dnl GLIBCPP_CONFIGURE_TESTSUITE [no args]
1888 AC_DEFUN(GLIBCPP_CONFIGURE_TESTSUITE, [
1889 GLIBCPP_CHECK_SETRLIMIT
1893 sinclude(../libtool.m4)
1894 dnl The lines below arrange for aclocal not to bring an installed
1895 dnl libtool.m4 into aclocal.m4, while still arranging for automake to
1896 dnl add a definition of LIBTOOL to Makefile.in.
1897 ifelse(,,,[AC_SUBST(LIBTOOL)
1898 AC_DEFUN([AM_PROG_LIBTOOL])
1899 AC_DEFUN([AC_LIBTOOL_DLOPEN])
1900 AC_DEFUN([AC_PROG_LD])
1904 # Check whether LC_MESSAGES is available in <locale.h>.
1905 # Ulrich Drepper <drepper@cygnus.com>, 1995.
1907 # This file file be copied and used freely without restrictions. It can
1908 # be used in projects which are not available under the GNU Public License
1909 # but which still want to provide support for the GNU gettext functionality.
1910 # Please note that the actual code is *not* freely available.
1914 AC_DEFUN(AC_LC_MESSAGES, [
1915 AC_CHECK_HEADER(locale.h, [
1916 AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
1917 [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
1918 ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
1919 if test $ac_cv_val_LC_MESSAGES = yes; then
1920 AC_DEFINE(HAVE_LC_MESSAGES)
1926 # Add --enable-maintainer-mode option to configure.
1931 AC_DEFUN(AM_MAINTAINER_MODE,
1932 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1933 dnl maintainer-mode is disabled by default
1934 AC_ARG_ENABLE(maintainer-mode,
1935 [ --enable-maintainer-mode enable make rules and dependencies not useful
1936 (and sometimes confusing) to the casual installer],
1937 USE_MAINTAINER_MODE=$enableval,
1938 USE_MAINTAINER_MODE=no)
1939 AC_MSG_RESULT($USE_MAINTAINER_MODE)
1940 AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
1941 MAINT=$MAINTAINER_MODE_TRUE
1946 # Define a conditional.
1948 AC_DEFUN(AM_CONDITIONAL,
1959 # Macro to add for using GNU gettext.
1960 # Ulrich Drepper <drepper@cygnus.com>, 1995.
1962 # This file file be copied and used freely without restrictions. It can
1963 # be used in projects which are not available under the GNU Public License
1964 # but which still want to provide support for the GNU gettext functionality.
1965 # Please note that the actual code is *not* freely available.
1969 AC_DEFUN(AM_WITH_NLS,
1970 [AC_MSG_CHECKING([whether NLS is requested])
1971 dnl Default is enabled NLS
1973 [ --disable-nls do not use Native Language Support],
1974 USE_NLS=$enableval, USE_NLS=yes)
1975 AC_MSG_RESULT($USE_NLS)
1978 USE_INCLUDED_LIBINTL=no
1980 dnl If we use NLS figure out what method
1981 if test "$USE_NLS" = "yes"; then
1982 AC_DEFINE(ENABLE_NLS)
1983 AC_MSG_CHECKING([whether included gettext is requested])
1984 AC_ARG_WITH(included-gettext,
1985 [ --with-included-gettext use the GNU gettext library included here],
1986 nls_cv_force_use_gnu_gettext=$withval,
1987 nls_cv_force_use_gnu_gettext=no)
1988 AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
1990 nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
1991 if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
1992 dnl User does not insist on using GNU NLS library. Figure out what
1993 dnl to use. If gettext or catgets are available (in this order) we
1994 dnl use this. Else we have to fall back to GNU NLS library.
1995 dnl catgets is only used if permitted by option --with-catgets.
1997 nls_cv_header_libgt=
2000 AC_CHECK_HEADER(libintl.h,
2001 [AC_CACHE_CHECK([for gettext in libc], gt_cv_func_gettext_libc,
2002 [AC_TRY_LINK([#include <libintl.h>], [return (int) gettext ("")],
2003 gt_cv_func_gettext_libc=yes, gt_cv_func_gettext_libc=no)])
2005 if test "$gt_cv_func_gettext_libc" != "yes"; then
2006 AC_CHECK_LIB(intl, bindtextdomain,
2007 [AC_CACHE_CHECK([for gettext in libintl],
2008 gt_cv_func_gettext_libintl,
2009 [AC_TRY_LINK([], [return (int) gettext ("")],
2010 gt_cv_func_gettext_libintl=yes,
2011 gt_cv_func_gettext_libintl=no)])])
2014 if test "$gt_cv_func_gettext_libc" = "yes" \
2015 || test "$gt_cv_func_gettext_libintl" = "yes"; then
2016 AC_DEFINE(HAVE_GETTEXT)
2017 AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
2018 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)dnl
2019 if test "$MSGFMT" != "no"; then
2020 AC_CHECK_FUNCS(dcgettext)
2021 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
2022 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
2023 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
2024 AC_TRY_LINK(, [extern int _nl_msg_cat_cntr;
2025 return _nl_msg_cat_cntr],
2035 if test "$CATOBJEXT" = "NONE"; then
2036 AC_MSG_CHECKING([whether catgets can be used])
2037 AC_ARG_WITH(catgets,
2038 [ --with-catgets use catgets functions if available],
2039 nls_cv_use_catgets=$withval, nls_cv_use_catgets=no)
2040 AC_MSG_RESULT($nls_cv_use_catgets)
2042 if test "$nls_cv_use_catgets" = "yes"; then
2043 dnl No gettext in C library. Try catgets next.
2044 AC_CHECK_LIB(i, main)
2045 AC_CHECK_FUNC(catgets,
2046 [AC_DEFINE(HAVE_CATGETS)
2047 INTLOBJS="\$(CATOBJS)"
2048 AC_PATH_PROG(GENCAT, gencat, no)dnl
2049 if test "$GENCAT" != "no"; then
2050 AC_PATH_PROG(GMSGFMT, gmsgfmt, no)
2051 if test "$GMSGFMT" = "no"; then
2052 AM_PATH_PROG_WITH_TEST(GMSGFMT, msgfmt,
2053 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)
2055 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
2056 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
2057 USE_INCLUDED_LIBINTL=yes
2061 INTLDEPS='$(top_builddir)/intl/libintl.a'
2063 LIBS=`echo $LIBS | sed -e 's/-lintl//'`
2064 nls_cv_header_intl=intl/libintl.h
2065 nls_cv_header_libgt=intl/libgettext.h
2070 if test "$CATOBJEXT" = "NONE"; then
2071 dnl Neither gettext nor catgets in included in the C library.
2072 dnl Fall back on GNU gettext library.
2073 nls_cv_use_gnu_gettext=yes
2077 if test "$nls_cv_use_gnu_gettext" = "yes"; then
2078 dnl Mark actions used to generate GNU NLS library.
2079 INTLOBJS="\$(GETTOBJS)"
2080 AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
2081 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], msgfmt)
2082 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
2083 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
2084 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
2086 USE_INCLUDED_LIBINTL=yes
2090 INTLDEPS='$(top_builddir)/intl/libintl.a'
2092 LIBS=`echo $LIBS | sed -e 's/-lintl//'`
2093 nls_cv_header_intl=intl/libintl.h
2094 nls_cv_header_libgt=intl/libgettext.h
2097 dnl Test whether we really found GNU xgettext.
2098 if test "$XGETTEXT" != ":"; then
2099 dnl If it is no GNU xgettext we define it as : so that the
2100 dnl Makefiles still can work.
2101 if $XGETTEXT --omit-header /dev/null 2> /dev/null; then
2105 [found xgettext programs is not GNU xgettext; ignore it])
2110 # We need to process the po/ directory.
2114 nls_cv_header_intl=intl/libintl.h
2115 nls_cv_header_libgt=intl/libgettext.h
2118 # If this is used in GNU gettext we have to set USE_NLS to `yes'
2119 # because some of the sources are only built for this goal.
2120 if test "$PACKAGE" = gettext; then
2122 USE_INCLUDED_LIBINTL=yes
2125 dnl These rules are solely for the distribution goal. While doing this
2126 dnl we only have to keep exactly one list of the available catalogs
2127 dnl in configure.in.
2128 for lang in $ALL_LINGUAS; do
2129 GMOFILES="$GMOFILES $lang.gmo"
2130 POFILES="$POFILES $lang.po"
2133 dnl Make all variables we use known to autoconf.
2134 AC_SUBST(USE_INCLUDED_LIBINTL)
2137 AC_SUBST(DATADIRNAME)
2139 AC_SUBST(INSTOBJEXT)
2147 AC_DEFUN(AM_GNU_GETTEXT,
2148 [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
2149 AC_REQUIRE([AC_PROG_CC])dnl
2150 AC_REQUIRE([AC_PROG_RANLIB])dnl
2151 AC_REQUIRE([AC_ISC_POSIX])dnl
2152 AC_REQUIRE([AC_HEADER_STDC])dnl
2153 AC_REQUIRE([AC_C_CONST])dnl
2154 AC_REQUIRE([AC_C_INLINE])dnl
2155 AC_REQUIRE([AC_TYPE_OFF_T])dnl
2156 AC_REQUIRE([AC_TYPE_SIZE_T])dnl
2157 AC_REQUIRE([AC_FUNC_ALLOCA])dnl
2158 AC_REQUIRE([AC_FUNC_MMAP])dnl
2160 AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h string.h \
2161 unistd.h values.h sys/param.h])
2162 AC_CHECK_FUNCS([getcwd munmap putenv setenv setlocale strchr strcasecmp \
2163 __argz_count __argz_stringify __argz_next])
2165 if test "${ac_cv_func_stpcpy+set}" != "set"; then
2166 AC_CHECK_FUNCS(stpcpy)
2168 if test "${ac_cv_func_stpcpy}" = "yes"; then
2169 AC_DEFINE(HAVE_STPCPY)
2175 if test "x$CATOBJEXT" != "x"; then
2176 if test "x$ALL_LINGUAS" = "x"; then
2179 AC_MSG_CHECKING(for catalogs to be installed)
2181 for lang in ${LINGUAS=$ALL_LINGUAS}; do
2182 case "$ALL_LINGUAS" in
2183 *$lang*) NEW_LINGUAS="$NEW_LINGUAS $lang" ;;
2186 LINGUAS=$NEW_LINGUAS
2187 AC_MSG_RESULT($LINGUAS)
2190 dnl Construct list of names of catalog files to be constructed.
2191 if test -n "$LINGUAS"; then
2192 for lang in $LINGUAS; do CATALOGS="$CATALOGS $lang$CATOBJEXT"; done
2196 dnl The reference to <locale.h> in the installed <libintl.h> file
2197 dnl must be resolved because we cannot expect the users of this
2198 dnl to define HAVE_LOCALE_H.
2199 if test $ac_cv_header_locale_h = yes; then
2200 INCLUDE_LOCALE_H="#include <locale.h>"
2203 /* The system does not provide the header <locale.h>. Take care yourself. */"
2205 AC_SUBST(INCLUDE_LOCALE_H)
2207 dnl Determine which catalog format we have (if any is needed)
2208 dnl For now we know about two different formats:
2209 dnl Linux libc-5 and the normal X/Open format
2210 test -d intl || mkdir intl
2211 if test "$CATOBJEXT" = ".cat"; then
2212 AC_CHECK_HEADER(linux/version.h, msgformat=linux, msgformat=xopen)
2214 dnl Transform the SED scripts while copying because some dumb SEDs
2215 dnl cannot handle comments.
2216 sed -e '/^#/d' $srcdir/intl/$msgformat-msg.sed > intl/po2msg.sed
2218 dnl po2tbl.sed is always needed.
2219 sed -e '/^#.*[^\\]$/d' -e '/^#$/d' \
2220 $srcdir/intl/po2tbl.sed.in > intl/po2tbl.sed
2222 dnl In the intl/Makefile.in we have a special dependency which makes
2223 dnl only sense for gettext. We comment this out for non-gettext
2225 if test "$PACKAGE" = "gettext"; then
2235 dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
2236 dnl find the mkinstalldirs script in another subdir but ($top_srcdir).
2237 dnl Try to locate is.
2239 if test -n "$ac_aux_dir"; then
2240 MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
2242 if test -z "$MKINSTALLDIRS"; then
2243 MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
2245 AC_SUBST(MKINSTALLDIRS)
2247 dnl *** For now the libtool support in intl/Makefile is not for real.
2251 dnl Generate list of files to be processed by xgettext which will
2252 dnl be included in po/Makefile.
2253 test -d po || mkdir po
2254 if test "x$srcdir" != "x."; then
2255 if test "x`echo $srcdir | sed 's@/.*@@'`" = "x"; then
2256 posrcprefix="$srcdir/"
2258 posrcprefix="../$srcdir/"
2264 sed -e "/^#/d" -e "/^\$/d" -e "s,.*, $posrcprefix& \\\\," -e "\$s/\(.*\) \\\\/\1/" \
2265 < $srcdir/po/POTFILES.in > po/POTFILES
2268 # Search path for a program which passes the given test.
2269 # Ulrich Drepper <drepper@cygnus.com>, 1996.
2271 # This file file be copied and used freely without restrictions. It can
2272 # be used in projects which are not available under the GNU Public License
2273 # but which still want to provide support for the GNU gettext functionality.
2274 # Please note that the actual code is *not* freely available.
2278 dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
2279 dnl TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
2280 AC_DEFUN(AM_PATH_PROG_WITH_TEST,
2281 [# Extract the first word of "$2", so it can be a program name with args.
2282 set dummy $2; ac_word=[$]2
2283 AC_MSG_CHECKING([for $ac_word])
2284 AC_CACHE_VAL(ac_cv_path_$1,
2287 ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
2290 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
2291 for ac_dir in ifelse([$5], , $PATH, [$5]); do
2292 test -z "$ac_dir" && ac_dir=.
2293 if test -f $ac_dir/$ac_word; then
2295 ac_cv_path_$1="$ac_dir/$ac_word"
2301 dnl If no 4th arg is given, leave the cache variable unset,
2302 dnl so AC_PATH_PROGS will keep looking.
2303 ifelse([$4], , , [ test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
2308 if test -n "[$]$1"; then
2309 AC_MSG_RESULT([$]$1)
2316 # Check whether LC_MESSAGES is available in <locale.h>.
2317 # Ulrich Drepper <drepper@cygnus.com>, 1995.
2319 # This file file be copied and used freely without restrictions. It can
2320 # be used in projects which are not available under the GNU Public License
2321 # but which still want to provide support for the GNU gettext functionality.
2322 # Please note that the actual code is *not* freely available.
2326 AC_DEFUN(AM_LC_MESSAGES,
2327 [if test $ac_cv_header_locale_h = yes; then
2328 AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
2329 [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
2330 am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
2331 if test $am_cv_val_LC_MESSAGES = yes; then
2332 AC_DEFINE(HAVE_LC_MESSAGES, 1,
2333 [Define if your locale.h file contains LC_MESSAGES.])
2337 # Do all the work for Automake. This macro actually does too much --
2338 # some checks are only needed if your package does certain things.
2339 # But this isn't really a big deal.
2344 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
2346 AC_DEFUN(AM_INIT_AUTOMAKE,
2347 [AC_REQUIRE([AC_PROG_INSTALL])
2352 dnl test to see if srcdir already configured
2353 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
2354 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
2357 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
2358 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
2359 AC_REQUIRE([AM_SANITY_CHECK])
2360 AC_REQUIRE([AC_ARG_PROGRAM])
2361 dnl FIXME This is truly gross.
2362 missing_dir=`cd $ac_aux_dir && pwd`
2363 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
2364 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
2365 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
2366 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
2367 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
2368 AC_REQUIRE([AC_PROG_MAKE_SET])])
2371 # Check to make sure that the build environment is sane.
2374 AC_DEFUN(AM_SANITY_CHECK,
2375 [AC_MSG_CHECKING([whether build environment is sane])
2378 echo timestamp > conftestfile
2379 # Do `set' in a subshell so we don't clobber the current shell's
2380 # arguments. Must try -L first in case configure is actually a
2381 # symlink; some systems play weird games with the mod time of symlinks
2382 # (eg FreeBSD returns the mod time of the symlink's containing
2385 set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
2386 if test "[$]*" = "X"; then
2388 set X `ls -t $srcdir/configure conftestfile`
2390 if test "[$]*" != "X $srcdir/configure conftestfile" \
2391 && test "[$]*" != "X conftestfile $srcdir/configure"; then
2393 # If neither matched, then we have a broken ls. This can happen
2394 # if, for instance, CONFIG_SHELL is bash and it inherits a
2395 # broken ls alias from the environment. This has actually
2396 # happened. Such a system could not be considered "sane".
2397 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
2398 alias in your environment])
2401 test "[$]2" = conftestfile
2407 AC_MSG_ERROR([newly created file is older than distributed files!
2408 Check your system clock])
2411 AC_MSG_RESULT(yes)])
2413 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
2414 dnl The program must properly implement --version.
2415 AC_DEFUN(AM_MISSING_PROG,
2416 [AC_MSG_CHECKING(for working $2)
2417 # Run test in a subshell; some versions of sh will print an error if
2418 # an executable is not found, even if stderr is redirected.
2419 # Redirect stdin to placate older versions of autoconf. Sigh.
2420 if ($2 --version) < /dev/null > /dev/null 2>&1; then
2422 AC_MSG_RESULT(found)
2425 AC_MSG_RESULT(missing)
2429 # Like AC_CONFIG_HEADER, but automatically create stamp file.
2431 AC_DEFUN(AM_CONFIG_HEADER,
2433 AC_CONFIG_HEADER([$1])
2434 dnl When config.status generates a header, we must update the stamp-h file.
2435 dnl This file resides in the same directory as the config header
2436 dnl that is generated. We must strip everything past the first ":",
2437 dnl and everything past the last "/".
2438 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
2439 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
2440 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
2442 for am_file in <<$1>>; do
2443 case " <<$>>CONFIG_HEADERS " in
2444 *" <<$>>am_file "*<<)>>
2445 echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
2448 am_indx=`expr "<<$>>am_indx" + 1`